Collapsible core.



v u. E/NYE," COLLAPSIBLE CORE-Q APPLICATION FIL ED PAM/24,1915.

BY a fi; f I ATTORNE Patented Ja11.4, 1-916.

HARRY E. NYE, 0F AKRON, OHIO.

7 '0 all whom it may concern Be it known that I, HARRY E. NYE, a citizen of the United States, residing at Akron,

in the county of Summit andState of Ohio,

have invented new and useful Improvements in Collapsible Cores, of which the followlng is a specification.

, This invention relates to improvements in collapsible cores for the manufacture of outercasings for double-tube pneumatic 'COLLAPSIIBLE cons.

Specification of Letters Patent.

Patented Jan. 4. 191

Application filed May 24, 1915. Serial No. 30,132.

ertending flanges 5, .These flangesare'all similar in cross section and are provided on one face with laterally-projecting beads 16 providing shoulders 7 at their junction with the flange.

3. The junction lines 9 between'the ends of the section 1 and the sections 2 and 3 are so,

inclined that the member 1 is substantially %edge-.shapedto constitute a key-forming The opposite faces'8- of the flanges are inclined as clearly shown in Fig.

tires, and the object of the invention isS"to ember. The joints or lines of severance 1 provide a vcallapsible core comprising a plurality of segment shaped sections adapted to be assembled in annular formation and prov ded with new and improved means ifoiyuniting the sections together in their being assembled condition, said means capable of holding the sections in their annular formation and being easily removedto permit the removal of the members through the inner circumferential opening in the casings which are to be made thereon. v

Yvith the foregoing and other objects in View, the invention con in the novel construction, combination and arrangement of parts constituting the invention to be hereinafter specifically described andillustrated in a the accompanying. drawings which form apart hereof wherein isshown the preferred embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the matter hereinafter claimed.

In the drawings in which similar reference numerals indicate like parts in the different figures, Figure 1, is a plan of a core embodying this invention; Fig. 2, is a view similar to Fig. 1 showing the locking 'element'partiallyremoved from'the core sec tion; Fig. 3, is a sectional view taken on line X of Fig. 1; and, Fig. 4, is a sectional view of the locking member taken approximately on line Y of Fig. 1., a

A ring core embodying this invention is constructed of a. plurality of segmentshaped sections whiclrwhen united together as hereinafter described constitute an annulus,.th e outer andlateral faces of whichare shaped to impart a preferred configuration to the corresponding inner face of the tire shoe which is to be manufactured there- .The sections which are employed to form the ring core are designated in the drawing by the reference numerals 1, 2, 3 and 4 and are all provided with inwardly adapted to-receive'the shoulder 7-.between thebeads 6 and the fianges' 5-so that when the sections 1 -l are forced outwardlythe shoulders 7. on the flanges of the sections engage the shoulder on the ring 10, and the outer portions of the core sectionsjare thus held in complete and perfect registration.

Asthe means employed for forcing the sectio-ns 1l inclusive outwardly so as to cause snug engagement between the shoulders on the flanges 5 with the shoulder in the face of the ring 10.;1 provide a plurality 10f segment-shaped members 12 13, 1-1 and 15 all snnilarlv constructed but preferably differing in length. These members are provided in their outer faces with a groove 16,

one face 17 of which is inclined at an inclination approximatingthe inclinatkm of the faces 8 of the flanges an l ulapted to engage the same. The opposite fare 18 is perpendicular tothe core axis and is adapted to overlap the outer lateral face of the ring 10. One end of each of the members 13, 14 and 15 are provided with a pair of, laterally-projectiug rounded lugs 19 spaced apart from each other and the coadjacent ends of the section 12. and the opposite ends of the sections 13 and 14 are provided with concave grooves 20 adapted to receive the lugs 19. The members 1215-inclusi\'e are preferably connected through the medium of links 21 pivotallv united by pins 22 to opposite ends of the sections so that the locking elements comprising the members l2 15 may be handled as a unitary article. The opposing ends of the sections 12 and 15 pered pin 2-4 or any other suitable instru mentality for forcing the members l215 outwardly Will tend to expand the members and thereby clamp the ring 10 in position and also assist in forcing the core sections into complete registration.

I claini:

,1. A core of the character described comprising a plurality of separable sections having inwardly-extending flanges, said flanges each provided on one face With a lateral bead and having the opposite face inclined, a ring having a lateral bead looking over the beads on the flanges, and a plurality of segment-shaped locking members having peripheral grooves adapted to simultaneously receive said flanges and said ring.

A core of the character described comprising a plurality of separable sections having inwardly-extending flanges, said flanges each provided on one face with a lateral bead and having the opposite face inclined, a ring having a lateral .bead locking over the beads on the flanges, and a plurality of segment-shaped locking mem-. bers hinged together and provided with grooves in their peripheral face adapted to simultaneously receive said flanges and said ring. 3. A core of the character described com prising a plurality of separable sections having inwardly extending flanges, said flanges each provided on one face with a lateral bead and having the opposite face inclined, a ring having a lateral bead looking over the beads on the flanges, a plurality of segment-shaped locking members having grooves in their outer faces adapted to receive said flanges and said ring, and means for forcing said members outwardly to thereby force the beads on the flanges into snug engagement with the head on said ring.

4. A core of the character described comprising a plurality of separable sections having inwardly-extending flanges, said flanges each provided on one face With a lateral bead and having the opposite face inclined, a-ring having a lateral bead locking over the beads on the flanges, a plurality of segment-shaped locking members having grooves in their outer faces adapted to receive said flanges and said ring, means for forcing said members outwardly to thereby force the beads on the flanges into snug engagement with the bead on said ring, and means to hinge said sections together 5. A core of the character described comprising a plurality of separable sections having inwardly-extending flanges, said flanges each provided on one face with a lateral bead and having the opposite face inclined, a ring having a lateral bead locking over the beads on the flanges, a plurality of segment-shaped locking members having'grooves in their outer faces to simultaneously receive said flanges and said ring,

and a detachable member adapted to shift all of said members outwardly for forcing said locking members against said separable sections and lock said locking members against independent movement.

Iii testimony whereof I have hereuntoset my hand. HARRY E. NYE. 

